I need some help with my o4 mustang gt. I has new stg 2 comp cams and stg 2 livernois heads. runs good when cold and hot. Sometimes it pops when i shift. It also feels like it misses when its wide open. My ignition system is stock and so are my fuel system. Any suggestions will be considered. thanks

What's up Tex? My Expedition was doing the same thing. Ended up being #3 coil. How many miles on your Stang?

It has about 64000 miles. and about 600 on the top end. Thanks for the info.